1 files changed, 86 insertions, 0 deletions
diff --git a/chromium/media/cast/video_sender/external_video_encoder.h b/chromium/media/cast/video_sender/external_video_encoder.h
new file mode 100644
index 00000000000..29fe0c5fcdb
--- /dev/null
+++ b/chromium/media/cast/video_sender/external_video_encoder.h
@@ -0,0 +1,86 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MEDIA_CAST_VIDEO_SENDER_EXTERNAL_VIDEO_ENCODER_H_
+#define MEDIA_CAST_VIDEO_SENDER_EXTERNAL_VIDEO_ENCODER_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "media/cast/cast_config.h"
+#include "media/cast/cast_environment.h"
+#include "media/cast/video_sender/video_encoder.h"
+#include "media/video/video_encode_accelerator.h"
+
+namespace media {
+class VideoFrame;
+}
+
+namespace media {
+namespace cast {
+
+class LocalVideoEncodeAcceleratorClient;
+
+// This object is called external from the main cast thread and internally from
+// the video encoder thread.
+class ExternalVideoEncoder : public VideoEncoder {
+ public:
+  ExternalVideoEncoder(
+      scoped_refptr<CastEnvironment> cast_environment,
+      const VideoSenderConfig& video_config,
+      const CreateVideoEncodeAcceleratorCallback& create_vea_cb,
+      const CreateVideoEncodeMemoryCallback& create_video_encode_mem_cb);
+
+  virtual ~ExternalVideoEncoder();
+
+  // Called from the main cast thread. This function post the encode task to the
+  // video encoder thread;
+  // The video_frame must be valid until the closure callback is called.
+  // The closure callback is called from the video encoder thread as soon as
+  // the encoder is done with the frame; it does not mean that the encoded frame
+  // has been sent out.
+  // Once the encoded frame is ready the frame_encoded_callback is called.
+  virtual bool EncodeVideoFrame(
+      const scoped_refptr<media::VideoFrame>& video_frame,
+      const base::TimeTicks& capture_time,
+      const FrameEncodedCallback& frame_encoded_callback) OVERRIDE;
+
+  // The following functions are called from the main cast thread.
+  virtual void SetBitRate(int new_bit_rate) OVERRIDE;
+  virtual void GenerateKeyFrame() OVERRIDE;
+  virtual void LatestFrameIdToReference(uint32 frame_id) OVERRIDE;
+
+  // Called when a VEA is created.
+  void OnCreateVideoEncodeAccelerator(
+      const CreateVideoEncodeMemoryCallback& create_video_encode_mem_cb,
+      scoped_refptr<base::SingleThreadTaskRunner> encoder_task_runner,
+      scoped_ptr<media::VideoEncodeAccelerator> vea);
+
+ protected:
+  void EncoderInitialized();
+  void EncoderError();
+
+ private:
+  friend class LocalVideoEncodeAcceleratorClient;
+
+  VideoSenderConfig video_config_;
+  scoped_refptr<CastEnvironment> cast_environment_;
+
+  bool encoder_active_;
+  bool key_frame_requested_;
+
+  scoped_refptr<LocalVideoEncodeAcceleratorClient> video_accelerator_client_;
+  scoped_refptr<base::SingleThreadTaskRunner> encoder_task_runner_;
+
+  // Weak pointer factory for posting back LocalVideoEncodeAcceleratorClient
+  // notifications to ExternalVideoEncoder.
+  // NOTE: Weak pointers must be invalidated before all other member variables.
+  base::WeakPtrFactory<ExternalVideoEncoder> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(ExternalVideoEncoder);
+};
+
+}  // namespace cast
+}  // namespace media
+
+#endif  // MEDIA_CAST_VIDEO_SENDER_EXTERNAL_VIDEO_ENCODER_H_